Evidence map›Paper›PMID 32762715›Full record

ArticleThe journal of headache and pain2020

Mid- to late-life migraine diagnoses and risk of dementia: a national register-based follow-up study.

Sabrina Islamoska, Åse Marie Hansen, Hui-Xin Wang, Anne Helene Garde, Per Kragh Andersen, Ellen Garde, Jakob Møller Hansen, Gunhild Waldemar, Kirsten Nabe-Nielsen

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 6 pooled it
9.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 6 syntheses or guidelines pooled it, 84 citations in OpenAlex.

  1. Pooled it
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  3. Is headache a risk factor for dementia? A systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Pooled it
  4. Association between migraine and cognitive impairment.The journal of headache and pain · 2022
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  9. Migraine and the Risk of Dementia in the General Population.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Sabrina IslamoskaDepartment of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark. saim@sund.ku.dk.ORCID http://orcid.org/0000-0002-7693-6142
Åse Marie HansenDepartment of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark.
Hui-Xin WangStress Research Institute, Stockholm University, Frescati Hagväg 16A, 114 19, Stockholm, Sweden.
Anne Helene GardeDepartment of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark.
Per Kragh AndersenDepartment of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark.
Ellen GardeDepartment of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark.
Jakob Møller HansenDanish Headache Center, Rigshospitalet - Glostrup, Valdemar Hansens Vej 5, 2600, Glostrup, Denmark.
Gunhild WaldemarDanish Dementia Research Centre, Rigshospitalet, University of Copenhagen, Section 6922, Juliane Mariesvej 28, 2100, Copenhagen, Denmark.
Kirsten Nabe-NielsenDepartment of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark.
University of Copenhagen · DKGlostrup Hospital · DKStockholm University · SE

Funding

Velux Fonden 00014847
6 · The paper itself

Abstract

backgroundPrevious studies found an association between migraine and dementia, which are two leading causes of disability. However, these studies did not differentiate between migraine types and did not investigate all prevalent dementia subtypes. The main objective of this national register-based study was to investigate whether migraine was a risk factor for dementia. Additionally, we explored potential differences in dementia risk for migraine with and without aura.

methodsWe obtained data on birth cohorts born between 1935 and 1956 (n = 1,657,890) from Danish national registers. Individuals registered with migraine before age 59 (n = 18,135) were matched (1:5) on sex and birthdate with individuals without migraine (n = 1,378,346). Migraine was defined by International Classification of Diseases (ICD) diagnoses and dementia was defined by ICD diagnoses and anti-dementia medication. After matching, 62,578 individuals were eligible for analysis. For the statistical analyses, we used Cox regression models and adjusted for socio-demographic factors and several psychiatric and somatic morbidities.

resultsDuring a median follow-up time of 6.9 (IQR: 3.6-11.2) years, 207 individuals with migraine developed dementia. Compared with individuals without migraine, we found a 50% higher rate of dementia among individuals with migraine (HR = 1.50; 95% CI: 1.28-1.76). Individuals without aura had a 19% higher rate of dementia (HR = 1.19; 95% CI: 0.84-1.70), and individuals with aura had a two times higher rate of dementia (HR = 2.11; 95% CI: 1.48-3.00).

conclusionsOur findings support the hypothesis that migraine is a midlife risk factor for dementia in later life. The higher rate of dementia in individuals with a hospital-based diagnosis of migraine with aura emphasizes the need for studies on pathological mechanisms and potential preventative measures. Furthermore, given that only hospital-based migraine diagnoses were included in this study, future research should also investigate migraine cases derived from the primary healthcare system to include less severe migraine cases.

Indexed as

DementiaFemaleFollow-Up StudiesHumansInternational Classification of DiseasesMaleMiddle AgedMigraine DisordersPrevalenceRisk FactorsDementiaHeadacheMigraineNeurology

Identifiers

PMID32762715
PMCPMC7410151
OpenAlexW3047376753

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.